Messages in this thread Patch in this message | | | From | Jesper Juhl <> | Subject | [PATCH 04/12] making the kernel -Wshadow clean - warnings related to 'up' | Date | Sun, 30 Jul 2006 18:38:03 +0200 |
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Fix a few -Wshadow warnings related to variables of the name 'up' clashing with the global function name up() by renaming the variables.
Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> ---
drivers/char/vt_ioctl.c | 60 +++++++++++++++++++------------------- fs/select.c | 6 +-- kernel/user.c | 36 +++++++++++----------- 3 files changed, 51 insertions(+), 51 deletions(-)
--- linux-2.6.18-rc2-orig/drivers/char/vt_ioctl.c 2006-07-18 18:46:23.000000000 +0200 +++ linux-2.6.18-rc2/drivers/char/vt_ioctl.c 2006-07-18 21:21:39.000000000 +0200 @@ -187,7 +187,7 @@ do_kdgkb_ioctl(int cmd, struct kbsentry struct kbsentry *kbs; char *p; u_char *q; - u_char __user *up; + u_char __user *u; int sz; int delta; char *first_free, *fj, *fnw; @@ -215,15 +215,15 @@ do_kdgkb_ioctl(int cmd, struct kbsentry case KDGKBSENT: sz = sizeof(kbs->kb_string) - 1; /* sz should have been a struct member */ - up = user_kdgkb->kb_string; + u = user_kdgkb->kb_string; p = func_table[i]; if(p) for ( ; *p && sz; p++, sz--) - if (put_user(*p, up++)) { + if (put_user(*p, u++)) { ret = -EFAULT; goto reterr; } - if (put_user('\0', up)) { + if (put_user('\0', u)) { ret = -EFAULT; goto reterr; } @@ -370,7 +370,7 @@ int vt_ioctl(struct tty_struct *tty, str struct kbd_struct * kbd; unsigned int console; unsigned char ucval; - void __user *up = (void __user *)arg; + void __user *u = (void __user *)arg; int i, perm; console = vc->vc_num; @@ -454,12 +454,12 @@ int vt_ioctl(struct tty_struct *tty, str if (!capable(CAP_SYS_TTY_CONFIG)) return -EPERM; - if (copy_from_user(&kbrep, up, sizeof(struct kbd_repeat))) + if (copy_from_user(&kbrep, u, sizeof(struct kbd_repeat))) return -EFAULT; err = kbd_rate(&kbrep); if (err) return err; - if (copy_to_user(up, &kbrep, sizeof(struct kbd_repeat))) + if (copy_to_user(u, &kbrep, sizeof(struct kbd_repeat))) return -EFAULT; return 0; } @@ -569,19 +569,19 @@ int vt_ioctl(struct tty_struct *tty, str case KDSETKEYCODE: if(!capable(CAP_SYS_TTY_CONFIG)) perm=0; - return do_kbkeycode_ioctl(cmd, up, perm); + return do_kbkeycode_ioctl(cmd, u, perm); case KDGKBENT: case KDSKBENT: - return do_kdsk_ioctl(cmd, up, perm, kbd); + return do_kdsk_ioctl(cmd, u, perm, kbd); case KDGKBSENT: case KDSKBSENT: - return do_kdgkb_ioctl(cmd, up, perm); + return do_kdgkb_ioctl(cmd, u, perm); case KDGKBDIACR: { - struct kbdiacrs __user *a = up; + struct kbdiacrs __user *a = u; if (put_user(accent_table_size, &a->kb_cnt)) return -EFAULT; @@ -592,7 +592,7 @@ int vt_ioctl(struct tty_struct *tty, str case KDSKBDIACR: { - struct kbdiacrs __user *a = up; + struct kbdiacrs __user *a = u; unsigned int ct; if (!perm) @@ -661,7 +661,7 @@ int vt_ioctl(struct tty_struct *tty, str if (!perm) return -EPERM; - if (copy_from_user(&tmp, up, sizeof(struct vt_mode))) + if (copy_from_user(&tmp, u, sizeof(struct vt_mode))) return -EFAULT; if (tmp.mode != VT_AUTO && tmp.mode != VT_PROCESS) return -EINVAL; @@ -685,7 +685,7 @@ int vt_ioctl(struct tty_struct *tty, str memcpy(&tmp, &vc->vt_mode, sizeof(struct vt_mode)); release_console_sem(); - rc = copy_to_user(up, &tmp, sizeof(struct vt_mode)); + rc = copy_to_user(u, &tmp, sizeof(struct vt_mode)); return rc ? -EFAULT : 0; } @@ -696,7 +696,7 @@ int vt_ioctl(struct tty_struct *tty, str */ case VT_GETSTATE: { - struct vt_stat __user *vtstat = up; + struct vt_stat __user *vtstat = u; unsigned short state, mask; if (put_user(fg_console + 1, &vtstat->v_active)) @@ -840,7 +840,7 @@ int vt_ioctl(struct tty_struct *tty, str case VT_RESIZE: { - struct vt_sizes __user *vtsizes = up; + struct vt_sizes __user *vtsizes = u; ushort ll,cc; if (!perm) return -EPERM; @@ -857,7 +857,7 @@ int vt_ioctl(struct tty_struct *tty, str case VT_RESIZEX: { - struct vt_consize __user *vtconsize = up; + struct vt_consize __user *vtconsize = u; ushort ll,cc,vlin,clin,vcol,ccol; if (!perm) return -EPERM; @@ -911,7 +911,7 @@ int vt_ioctl(struct tty_struct *tty, str op.width = 8; op.height = 0; op.charcount = 256; - op.data = up; + op.data = u; return con_font_op(vc_cons[fg_console].d, &op); } @@ -921,21 +921,21 @@ int vt_ioctl(struct tty_struct *tty, str op.width = 8; op.height = 32; op.charcount = 256; - op.data = up; + op.data = u; return con_font_op(vc_cons[fg_console].d, &op); } case PIO_CMAP: if (!perm) return -EPERM; - return con_set_cmap(up); + return con_set_cmap(u); case GIO_CMAP: - return con_get_cmap(up); + return con_get_cmap(u); case PIO_FONTX: case GIO_FONTX: - return do_fontx_ioctl(cmd, up, perm, &op); + return do_fontx_ioctl(cmd, u, perm, &op); case PIO_FONTRESET: { @@ -960,13 +960,13 @@ int vt_ioctl(struct tty_struct *tty, str } case KDFONTOP: { - if (copy_from_user(&op, up, sizeof(op))) + if (copy_from_user(&op, u, sizeof(op))) return -EFAULT; if (!perm && op.op != KD_FONT_OP_GET) return -EPERM; i = con_font_op(vc, &op); if (i) return i; - if (copy_to_user(up, &op, sizeof(op))) + if (copy_to_user(u, &op, sizeof(op))) return -EFAULT; return 0; } @@ -974,24 +974,24 @@ int vt_ioctl(struct tty_struct *tty, str case PIO_SCRNMAP: if (!perm) return -EPERM; - return con_set_trans_old(up); + return con_set_trans_old(u); case GIO_SCRNMAP: - return con_get_trans_old(up); + return con_get_trans_old(u); case PIO_UNISCRNMAP: if (!perm) return -EPERM; - return con_set_trans_new(up); + return con_set_trans_new(u); case GIO_UNISCRNMAP: - return con_get_trans_new(up); + return con_get_trans_new(u); case PIO_UNIMAPCLR: { struct unimapinit ui; if (!perm) return -EPERM; - i = copy_from_user(&ui, up, sizeof(struct unimapinit)); + i = copy_from_user(&ui, u, sizeof(struct unimapinit)); if (i) return -EFAULT; con_clear_unimap(vc, &ui); return 0; @@ -999,7 +999,7 @@ int vt_ioctl(struct tty_struct *tty, str case PIO_UNIMAP: case GIO_UNIMAP: - return do_unimap_ioctl(cmd, up, perm, vc); + return do_unimap_ioctl(cmd, u, perm, vc); case VT_LOCKSWITCH: if (!capable(CAP_SYS_TTY_CONFIG)) --- linux-2.6.18-rc2-orig/fs/select.c 2006-07-18 18:46:59.000000000 +0200 +++ linux-2.6.18-rc2/fs/select.c 2006-07-18 21:23:01.000000000 +0200 @@ -524,17 +524,17 @@ asmlinkage long sys_pselect6(int n, fd_s fd_set __user *exp, struct timespec __user *tsp, void __user *sig) { size_t sigsetsize = 0; - sigset_t __user *up = NULL; + sigset_t __user *u = NULL; if (sig) { if (!access_ok(VERIFY_READ, sig, sizeof(void *)+sizeof(size_t)) - || __get_user(up, (sigset_t __user * __user *)sig) + || __get_user(u, (sigset_t __user * __user *)sig) || __get_user(sigsetsize, (size_t __user *)(sig+sizeof(void *)))) return -EFAULT; } - return sys_pselect7(n, inp, outp, exp, tsp, up, sigsetsize); + return sys_pselect7(n, inp, outp, exp, tsp, u, sigsetsize); } #endif /* TIF_RESTORE_SIGMASK */ --- linux-2.6.18-rc2-orig/kernel/user.c 2006-07-18 18:47:16.000000000 +0200 +++ linux-2.6.18-rc2/kernel/user.c 2006-07-19 00:05:58.000000000 +0200 @@ -56,14 +56,14 @@ struct user_struct root_user = { /* * These routines must be called with the uidhash spinlock held! */ -static inline void uid_hash_insert(struct user_struct *up, struct list_head *hashent) +static inline void uid_hash_insert(struct user_struct *u, struct list_head *hashent) { - list_add(&up->uidhash_list, hashent); + list_add(&u->uidhash_list, hashent); } -static inline void uid_hash_remove(struct user_struct *up) +static inline void uid_hash_remove(struct user_struct *u) { - list_del(&up->uidhash_list); + list_del(&u->uidhash_list); } static inline struct user_struct *uid_hash_find(uid_t uid, struct list_head *hashent) @@ -101,20 +101,20 @@ struct user_struct *find_user(uid_t uid) return ret; } -void free_uid(struct user_struct *up) +void free_uid(struct user_struct *u) { unsigned long flags; - if (!up) + if (!u) return; local_irq_save(flags); - if (atomic_dec_and_lock(&up->__count, &uidhash_lock)) { - uid_hash_remove(up); + if (atomic_dec_and_lock(&u->__count, &uidhash_lock)) { + uid_hash_remove(u); spin_unlock_irqrestore(&uidhash_lock, flags); - key_put(up->uid_keyring); - key_put(up->session_keyring); - kmem_cache_free(uid_cachep, up); + key_put(u->uid_keyring); + key_put(u->session_keyring); + kmem_cache_free(uid_cachep, u); } else { local_irq_restore(flags); } @@ -123,13 +123,13 @@ void free_uid(struct user_struct *up) struct user_struct * alloc_uid(uid_t uid) { struct list_head *hashent = uidhashentry(uid); - struct user_struct *up; + struct user_struct *u; spin_lock_irq(&uidhash_lock); - up = uid_hash_find(uid, hashent); + u = uid_hash_find(uid, hashent); spin_unlock_irq(&uidhash_lock); - if (!up) { + if (!u) { struct user_struct *new; new = kmem_cache_alloc(uid_cachep, SLAB_KERNEL); @@ -158,19 +158,19 @@ struct user_struct * alloc_uid(uid_t uid * on adding the same user already.. */ spin_lock_irq(&uidhash_lock); - up = uid_hash_find(uid, hashent); - if (up) { + u = uid_hash_find(uid, hashent); + if (u) { key_put(new->uid_keyring); key_put(new->session_keyring); kmem_cache_free(uid_cachep, new); } else { uid_hash_insert(new, hashent); - up = new; + u = new; } spin_unlock_irq(&uidhash_lock); } - return up; + return u; } void switch_uid(struct user_struct *new_user)
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